Note 90 — Chapter XII · HOW THE RACES WERE PHYSIOLOGICALLY SEPARATED, AND THE DIFFERENT VARIETIES FORMED BY THEIR INTER-MIXTURE. THEY ARE UNEQUAL IN STRENGTH AND BEAUTY
Adrian Collins translation
Lyell, “Principles of Geology,” vol. ii, p. 119.
Adrian Collins translation
Lyell, “Principles of Geology,” vol. ii, p. 119.